Building-block.



E. S. FEE.

BUILDING BLOCK.

APPLICATION FILED MAY 29. 1911.

Patented Sept. 12, 1911.

6 0 Irv M 0 v m a LOLUMIIA PLANOOWN COI'. VIAIHIW. D- C- EDWIN S. FEE,OF CHICAGO, ILLINOIS.

BUILDING-BLOCK.

Specification of Letters Patent.

Application filed May 29, 1911.

To all whom it may concern:

Be it known that I, EDWIN S. FEE, a citizen of the United States,residing at Chi cago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Building-Blocks, ofwhich the following is a specification.

My present invention relates particularly to building blocks formed of aplastic material, my object being to provide a block which will beinter-locking in every respect, and especially adapted for temporarywalls and like structures without a binding material.

With this in view my invention resides in the block to be hereinafterdescribed with respect to the accompanying drawing, in

. which,

Figure 1 is an elevation showing several of the blocks inter-locked inthe position they would be when forming a wall, and Fig. 2 is aperspective view of one of the blocks.

Referring now to these figures, my improved block comprises sideportions 5 and 6, these side portions being spaced apart and of similarshape and size. These side portions 5 and 6 are provided with reducedcentral portions 7 and are gradually widened to their ends, so that whenplaced as shown in Fig. 1, to break-joint, the abutting widened ends ofcontiguous blocks in each longitudinal row extend into the reducedcentral portion of the next adjacent blocks above and below, thuslooking all of the blocks from longitudinal movement.

Connecting the side portions 5 and 6 is a rectangular central blockportion 8 which, as shown, is of a uniform width which is greater thanthe width of the reduced central portions 7 of the block sides, and lessthan the width of the widened ends of said block sides. At one end, therectangular central portion 8 is terminated a short dis tance within thecorresponding ends of the block sides 5 and 6, while the opposite end 9of the central block portion projects substantially an equal distancebeyond the respective ends of said block sides. Thus, as particularlyillustrated, the central block portions 8, intermediate their endsinter-lock between the two side portions 5 and 6 of the next adjacentblocks above and below,

Patented Sept. 12, 1911.

Serial No. 630,230.

simple and inexpensive, it will be seen that each block in a wall orlike structure will positively lock against movement in any direction,with each of the blocks surrounding the same. It will be also seen thatthe block central portions 8 being of less width than the widened endsof the side portions, will be spaced apart when the blocks are placed toform a wall, in order that dead air spaces as indicated at 10 in Fig. 1may be formed.

The block I have shown and described is thus particularly adapted forthe formation of temporary walls without the use of a binding material,although they may be as readily used in the formation of permanent wallsby using the usual binding material between the contacting edges of theside portions 5 and 6.

I claim A building block having two of its opposite edges formed withangular recesses extending from the corners of the block, with websextending across the apex of the re cesses, the depth of said webs beingless than the depth of the recesses, and the faces of the webs beingoifset inwardly from the plane of the faces of the block, and said edgesof the block being slotted lengthwise; which slots correspond in widthto the width of the webs and extend from the corners of the blockinwardly to the plane of the outer edges of the webs; the other twoedges of the block having, respectively, a tongue and a recess, theopposite edges of said tongue coinciding with the outer edges of thewebs and the inner ends of the slots, and the recess connecting theslots of the corresponding ends of the block,

In testimony whereof I afiix my slgnature in presence of two witnesses.

EDWIN S. FEE.

Witnesses:

MYRON G. CLEAR, H. G. BATOHELOR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

